Francis a



(No Model.) 2 2 1 F. A. MOORE. I i RAILWAY OIL BOX JACK. No. 522,762.Patented July 10, 1894.

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. Eli-Moore.

UNITED STATES PATENT OFF CE.

, FRANCIS A. MOORE, OF TYLER, TEXAS, ASSIGNOR OF ONE-THIRD TO JAMESJOSEPH ROBINSON, OF SAME PLACE.

RAILWAY OIL-BOX JACK.

SPECIFICATION forming part of Letters Patent No. 522,762, dated July 10,1894..

Application filed March 29,1894. Serial No. 505,583. (No model.)

To 0; whom it may concern.-

Be it known that I, FRANCIS A. MOORE, a citizen of the United States,residing at Tyler, in the county of Smith and State of Texas, haveinvented certain new and useful 1m provements in Railway Oil-Box Jacks;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention is a new railway oil box jack, which I claim. to be animprovement over all others for the same purpose, owing to itssimplicity, durability and efficiency in its work. It is more easilyapplied. and quicker in its results; and consists in the novelconstruction and arrangement of its parts, hereinafter set out in thisspecification and the claims thereunto attached.

In the accompanying drawings: Figure 1 is an elevation of my invention.Fig. 2 is a view of the lower part, part in section and partly inelevation looking at the front of the invention. Fig. 3is a view of thelower part, part in section and partly in elevation looking at the sideof the invention.

My invention is described as follows:

A, is a plate thetop part a, of which is the hook. Said plate isprovided with the flange a, to strengthen it. The lower end of saidflange widens intoa bracket (7, which,in conjunction with'the bracket 1)on the opposite edge of said plate and the bracket b in the centerthereof, forms a rest for the base block 0. Said base block 0, isprovided with a horizontal dove-tail slot 0, c, and through the innerend of said block is a perforation c.

In the said dovetail slot is fitted a nut D, having a neck 01, providedwith a perforation d,

which registers with the perforation c, and.

through these perforations is inserted a pin 61 so that said not may beremoved at any time, repaired or replaced by a new one when necessary.

The jack screw E, is provided with a levermade so as to engage thebottom tie bar of the truck under the oil box, and said recess is madeso as to fit said tie bar and prevent u said head-nut from turning Thejack hangs on t-he axle between the oil box and the wheel, by the hookat, the bottom merely resting against the bottom edge of the wheel, butdoes not lift upon the wheel at all.

The head-nut F, is set so to come directly under the oil box, giving asquare lift.

The jack is double acting having right and left nuts, while the jackscrew E, is provided with corresponding right and left threads.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is

l. A hoisting jack, consisting of a plate, provided at its upper endwith a hook to fit over the axle of a car, and having secured to itslower end a base, on the upper face of which is a dovetail groove; a nutfitting in said dovetail groove and held in place by any suitable means;a nut adapted to work under the oil box to raise the same; ajack screworovidedwith upper and lower threaded ends,

the threads thereon being right and left in respect to each other, andrespectively fitting in the lower and upper nuts, substantially as shownand described and for the purposes set forth.

2. A hoistingjack, consisting of the plate A, provided with the hook at,flange a, brackets b, b, and 73 base 0, supported by said brackets andprovided with the dovetail groove 0, c, and perforations c, and c nut D,fitting in the said dovetail groove 0, c, and provided with the neck d,having the perforation d; pin d fitting in said perforations c, d; jackscrew E, provided with the lever-head e, and right and left threadedscrews e, 6 head-nut F, working on the threaded end 6', of said screwand provided with recess fisubstantially as shown and described and forthe purposes set forth.

In testimony whereof I aiiix my signature in presence of two witnesses.

FRANCIS A. MOORE.

Witnesses:

E. M. HANNA, I. N. Onoss.

